Question: Who preceded and who succeeded to Lothair I as king of Franks?
Paraphrase: What kings directly preceded and followed Lothair I as the king of the Franks?
SPARQL (Wikidata): SELECT ?value1 ?value2 WHERE { wd:Q150735 p:P97 ?s . ?s ps:P97 wd:Q22923081 . ?s pq:P156 ?value1 . ?s pq:P155 ?value2 }